I don't have leagues in SoCal, but if you want active leagues, then look no further than MLFB. I did want to let you know that I have active standard leagues as well as extremely active dynasty and franchise leagues at MLFB. Nearly every league is free to join (except for two private ones which are filled). You can read about available leagues here: http://mlfb.info/smf/index.php?topic=4547.0